【摘要】：加快收斂速度是目前實時動態(tài)精密單點定位研究的難題。通過已知點觀測數(shù)據(jù)驗證了非差非組合PPP定位方法與傳統(tǒng)消電離層組合PPP定位精度相當(dāng),具有一定實際應(yīng)用價值。利用高精度CORS系統(tǒng)建立區(qū)域電離層模型并對非差非組合PPP進(jìn)行約束,與消電離層組合PPP定位結(jié)果相比,E方向初始?xì)v元定位偏差小于0.5 m,8 min內(nèi)定位偏差收斂至小于10 cm,定位精度得到明顯提高,完全能夠滿足交通運輸中動態(tài)定位導(dǎo)航的需求。
[Abstract]:To speed up convergence is a difficult problem in the research of real-time dynamic precise single point positioning. It is verified that the accuracy of the non-differential and non-integrated PPP positioning method is the same as that of the traditional ionospheric integrated PPP location method, which has a certain practical application value. The regional ionospheric model is established by using a high-precision CORS system and the non-differential non-integrated PPP is constrained. The initial epoch positioning deviation of E direction is less than 0.5 m compared with the result of ionospheric combined PPP positioning. The positioning accuracy of 8 min converges to less than 10 cm, which can meet the needs of dynamic positioning and navigation in traffic and transportation.
【作者單位】： 武漢大學(xué)中國南極測繪研究中心;
【基金】：中央高�；究蒲袠I(yè)務(wù)費專項資金(2042016kf0037)
【分類號】：U495;P228.4
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本文編號：2405018